Safety and protective target for garbage filling site;
垃圾填埋场的保护目标与安全
High temperature goggles prepared by using vacuum coating method;
真空镀膜制备高温护目镜
This paper describes the electrooptical shutter s principle, the new electrode material and the technology of goggles.
介绍了核闪光护目镜电光快门的工作原理、电极材料以及镜片工艺。